Doc #55446 [NEW]: getrandmax() incorrectly defined on rand() page

From: Operating system: PHP version: Irrelevant Package: Website problem Bug Type: Documentation Problem Bug description:getrandmax() incorrectly defined on rand() page Description: ------------ getrandmax() returns 32767 on my Windows system, not 32768 as documented. This makes sense as 32767 is the highest unsigned 15 bit number. Also, setting min and max, while affecting the range, does not affect the granularity. The result of rand(0, 0x7FFF00) will always be a multiple of 256 (0x100). This should be noted as I was trying to use rand() to produce more than 32767 unique values. Please make a note in the rand() page that mt_rand() produces more unique values in this case. -- Edit bug report at https://bugs.php.net/bug.php?id=55446&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=55446&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=55446&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=55446&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=55446&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=55446&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=55446&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=55446&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=55446&r=needscript Try newer version: https://bugs.php.net/fix.php?id=55446&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=55446&r=support Expected behavior: https://bugs.php.net/fix.php?id=55446&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=55446&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=55446&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=55446&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=55446&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=55446&r=dst IIS Stability: https://bugs.php.net/fix.php?id=55446&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=55446&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=55446&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=55446&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=55446&r=mysqlcfg